# TENNESSEE GAS PIPELINE COMPANY — Gas transmission and gathering — incident on 2019-01-31 **Citation:** PHMSA Report 20190020 **Type / status:** incident / historical **Agency:** Pipeline and Hazardous Materials Safety Administration **Effective:** 2019-01-31 **Published:** 2019-03-01 Gas transmission and gathering incident in SHEPHERD, SAN JACINTO County, TX. Reported cause: MATERIAL FAILURE OF PIPE OR WELD. Reported consequences: 0 fatalities, 0 injuries, 1269 NATURAL GAS released, $87,867 reported property damage. Operator-reported incident data submitted to PHMSA, generally within 30 days. Records may be supplemented or corrected and do not represent final agency causal findings. PHMSA trend classification: significant incident, not serious. ## Document text Gas transmission and gathering incident in SHEPHERD, SAN JACINTO County, TX. Reported cause: MATERIAL FAILURE OF PIPE OR WELD. Reported consequences: 0 fatalities, 0 injuries, 1269 NATURAL GAS released, $87,867 reported property damage. Operator-reported incident data submitted to PHMSA, generally within 30 days. Records may be supplemented or corrected and do not represent final agency causal findings. Report number: 20190020. Operator ID: 19160. Reported incident date: 1/31/2019 14:45. Location detail: 374 + 34.1 Cause detail: DESIGN-, CONSTRUCTION-, INSTALLATION-, OR FABRICATION-RELATED Cause detail: AT 1:52PM ON JANUARY 31, 2019, A LOCAL PUMPER NOTIFIED TENNESSEE GAS PIPELINE (TGP) OPERATIONS ABOUT A POTENTIAL LEAK SOUTH OF THE TRINITY RIVER IN SAN JACINTO COUNTY, TEXAS. TGP DISPATCHED OPERATIONS TO THE SITE TO INVESTIGATE. THEY ARRIVED AT 2:10PM AND AT 2:45PM CONFIRMED THAT THE 100-1 LINE WAS LEAKING. THE LINE WAS ISOLATED BY CLOSING MAINLINE VALVES MLV 27-1A AND MLV 27-1 AT 3:00PM. THE LINE WAS THEN BLOWN DOWN TO 0PSIG BY 8:00PM ON JANUARY 31, 2019. DUE TO WET GROUND CONDITIONS AND LOGISTICS, EXCAVATION OF THE LINE BEGAN ON FEBRUARY 2, 2019. THE LEAK WAS DETERMINED TO BE COMING FROM A CRACK IN THE PIPE GIRTH WELD. TO REPAIR THE CRACKED SECTION, THE LINE WAS CUT OUT AND REPLACED. REPAIRS WERE COMPLETED AND THE LINE WAS RETURNED TO SERVICE ON 1:23PM ON FEBRUARY 11, 2019. METALLURGICAL ANALYSIS DETERMINED THAT THE CAUSE OF THE CRACK WAS LACK OF FUSION IN THE PIPE GIRTH WELD DUE TO PIPE MISALIGNMENT DURING WELDING. A 48-HOUR PHONE UPDATE WAS PROVIDED TO THE NRC. THE 48-HOUR NRC REPORT NUMBER IS 1236609. PHMSA trend classification: significant incident, not serious. PHMSA standardized cause: MATERIAL FAILURE OF PIPE OR WELD — CONSTRUCTION, INSTALLATION OR FABRICATION-RELATED. PHMSA indexed costs: $115,578 reported total cost, $63,081.252 in 1984 dollars, $135,236.188 in current-year dollars. PHMSA trend flags, standardized causes, and indexed costs are analytical fields added to operator-reported incident data. They do not represent final agency causal findings. ## Provenance - Official: Yes - Source: - Source ID: `phmsa-pipeline-incidents` - SHA-256: `8423e97c4c206a26591fa80ff71737d33cb3790066891bca6a3d79393f10a36d` - Retrieved: 2026-08-20T03:30:32.010Z - Exported: 2026-08-25T05:16:49.386Z - Document slug: `phmsa-incident-2b123508a32eba56d9a53b22` ### Source metadata ```json { "recordKind": "pipeline_incident", "datasetType": "gas_transmission_gathering", "datasetLabel": "Gas transmission and gathering", "datasetPeriod": "January 2010 to present", "report": { "number": "20190020", "supplementalNumber": "32068", "type": "SUPPLEMENTAL FINAL", "receivedDate": "2019-03-01", "receivedDateRaw": "3/1/2019" }, "operator": { "id": "19160", "name": "TENNESSEE GAS PIPELINE COMPANY" }, "incident": { "date": "2019-01-31", "dateRaw": "1/31/2019 14:45" }, "location": { "city": "SHEPHERD", "county": "SAN JACINTO", "state": "TX", "postalCode": "77371", "latitude": 30.54375013, "longitude": -94.86795242, "type": "PIPELINE RIGHT-OF-WAY", "details": { "DESIGNATED_NAME": "374 + 34.1" }, "facilityName": "TGP 100-1" }, "cause": { "category": "MATERIAL FAILURE OF PIPE OR WELD", "details": { "CAUSE_DETAILS": "DESIGN-, CONSTRUCTION-, INSTALLATION-, OR FABRICATION-RELATED", "NARRATIVE": "AT 1:52PM ON JANUARY 31, 2019, A LOCAL PUMPER NOTIFIED TENNESSEE GAS PIPELINE (TGP) OPERATIONS ABOUT A POTENTIAL LEAK SOUTH OF THE TRINITY RIVER IN SAN JACINTO COUNTY, TEXAS. TGP DISPATCHED OPERATIONS TO THE SITE TO INVESTIGATE. THEY ARRIVED AT 2:10PM AND AT 2:45PM CONFIRMED THAT THE 100-1 LINE WAS LEAKING. THE LINE WAS ISOLATED BY CLOSING MAINLINE VALVES MLV 27-1A AND MLV 27-1 AT 3:00PM. THE LINE WAS THEN BLOWN DOWN TO 0PSIG BY 8:00PM ON JANUARY 31, 2019. DUE TO WET GROUND CONDITIONS AND LOGISTICS, EXCAVATION OF THE LINE BEGAN ON FEBRUARY 2, 2019. THE LEAK WAS DETERMINED TO BE COMING FROM A CRACK IN THE PIPE GIRTH WELD. TO REPAIR THE CRACKED SECTION, THE LINE WAS CUT OUT AND REPLACED. REPAIRS WERE COMPLETED AND THE LINE WAS RETURNED TO SERVICE ON 1:23PM ON FEBRUARY 11, 2019. METALLURGICAL ANALYSIS DETERMINED THAT THE CAUSE OF THE CRACK WAS LACK OF FUSION IN THE PIPE GIRTH WELD DUE TO PIPE MISALIGNMENT DURING WELDING. A 48-HOUR PHONE UPDATE WAS PROVIDED TO THE NRC. THE 48-HOUR NRC REPORT NUMBER IS 1236609." } }, "consequences": { "fatalities": 0, "injuries": 0, "commodity": "NATURAL GAS", "release": "1269", "propertyDamage": 87867, "estimatedOperatorCost": 10000, "estimatedEmergencyCost": 2000, "estimatedEnvironmentalCost": null, "ignition": "NO", "explosion": "NO", "evacuated": 0, "raw": { "FATAL": "0", "INJURE": "0", "UNINTENTIONAL_RELEASE": "1269", "EST_COST_PROP_DAMAGE": "87867", "PRPTY": "115578" } }, "provenance": { "viewId": "27nc-rsge", "viewUrl": "https://data.transportation.gov/api/views/27nc-rsge", "assetId": "2b05c2d8-d14a-4c56-ac1c-7d23a4bc31c8", "archiveFilename": "Gas Transmission & Gathering Incident Data - January 2010 to present.zip", "archiveSha256": "fe0b136ca4b00ac987a8bc2e195098accf910d97512c5fc3b59e62d9da5f674e", "memberPath": "incident_gas_transmission_gathering_jan2010_present.txt", "memberSha256": "b435f2a25718cf54c54e00294e6788c4f9c6860e02fb86355e75d294c243c4dd", "rowNumber": 878, "rowSha256": "f9b1397d4e2abff0695075f89aa65fed3366c0220637903cb49df2a763541820" }, "caveat": "Operator-reported incident data submitted to PHMSA, generally within 30 days. Records may be supplemented or corrected and do not represent final agency causal findings.", "operatorReported": true, "finalAgencyFinding": false, "flaggedAnalysis": { "dataAsOf": "2026-07-31", "flags": { "fireFirst": null, "significant": true, "serious": false }, "standardizedCause": { "sevenCategory": "MATERIAL/WELD/EQUIP FAILURE", "sevenSubcategory": "CONSTRUCTION, INSTALLATION OR FABRICATION-RELATED", "eightCategory": "MATERIAL FAILURE OF PIPE OR WELD", "eightSubcategory": "CONSTRUCTION, INSTALLATION OR FABRICATION-RELATED" }, "costs": { "reported": 115578, "in1984Dollars": 63081.25157553868, "currentYearDollars": 135236.1879592913 }, "caveat": "PHMSA trend flags, standardized causes, and indexed costs are analytical fields added to operator-reported incident data. They do not represent final agency causal findings.", "provenance": { "sourceUrl": "https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/data_statistics/pipeline/PHMSA_Pipeline_Safety_Flagged_Incidents.zip", "landingPageUrl": "https://www.phmsa.dot.gov/data-and-statistics/pipeline/pipeline-incident-flagged-files", "catalogUrl": "https://data.transportation.gov/Pipelines-and-Hazmat/Pipeline-Incident-Flagged-Files/qdme-9bbm", "retrievalMode": "official_live", "archivedAt": null, "archiveSha256": "317e6a3e16d60b9b677efe391dc40258b5dd7ead83fb8bea74cb553cedfbbdec", "workbook": "gtggungs2010toPresent.xlsx", "sheet": "gtggungs2010toPresent", "rowNumber": 1113, "rowSha256": "d70b1a6bae917cefda8f71af1b5cbccf90c11ad1500c6a5b76b0739c801454ac" } }, "jurisdiction": "US", "operatorName": "TENNESSEE GAS PIPELINE COMPANY" } ```